Glass-furnace.



3., J. QUERTINMONT.

GLASS FURNACE.

APPLICATION FILED AUG 2. 1913.

Patented Mar. 2, 191 5.

3SHEETS-SHEBT 1.

/Vitmwoeo J. J. QULRTINMQNT.

GLASS FURNACE.

:XZiLiCAIiON rum AUG. 2. m3.

Patented Mar. 2, 1915.

31 wve wtoz 611mm q 3 SHEETS -SHEBT 2,

J. 'J. QUERTINMON T.

Patented M21112, 1915.

3 SHEETS SHEET 3 anoemto'z attovwua J'U'LES J. QU'EB'I'IJIHQNT,

01' POINT 'KABIQH, YEN'RSYLVANIA cuss-common.

specification ct Letten'htcnt.

Katented Mar. 2, 1915.

application {lad input 2, 1913. Serial No. 788,855.

letter and State of Pennsylvania, have n'-. vented certain new and ments in Glass-Furnaces,

useful; improveof which'the fol- I lowing is a specification.

. The objects of my invention are My invention relates to im rovements in glass furnaces and means for rawing glass, more particularly with'reference to devices for the manufacture of window glass.

first, to so construct a furnace in which the glass after being melted in a" main furnace is permitted to flow to which operation said glass is entirelaefrreed of all impurities, grit or scum, and a glass has been acted u on by the bait or drawing tool in said tan the cooled, superfluous, or unused glass may be readily and easily removed to an attached secondary or auxiliary heating furnace to be remelted and conveyedto the primary furnace to be again mixed with the melte glass, without waste or loss of the heat remaining in the lass after being acted upon in the drawmg tank. Second, to so construct the drawing tank that the introduction of the-bait or drawing tool will not expose the main surface of the melted glass to the outside air, and at the same time prevent any scum or cooled surface glass tact with thebait.

With the above mentioned objects in view together with certain other incidental objects, hereinafter set forth, these improvements ivill now be described more in detail, with particular reference to the preferred form of 'th embodiment thereof, shown in the attached drawings, forming part of this spccificutio The invc tion consists of structural features and relativearrangements of the elements, which will be hereinafter more fully described and particularly pointed out in the appended claims.

In the drawings in which similar reference characters indicate the same parts.

throughout the several figures of the drawings; Figure 1 1s a side elevation of the furnace partly broken away to show the chamber.

a drawing tank during the y from coming in con-.

connection between the main furnace and the drawing tank; Fig. 2 is a plan view of the furnace; Fig. 3 is a front end view 5 Fig. 4 is a section on line IV-IV, of Fig. 2; Fig. 5 is an enlarged transverse sectional view of the floater scum separator used in the drawing tank, with the bait in position; Fig. 6 is a section on line VI-VLof Fig. 5; and Fig. 7 is a sectional view of a mod fied form of the floater scum separator.

Referring 'to the drawings 1 is the primary ormelting furnace, 2is the drawing tank and 3 is the secondary or reheating outlets 5, 5, gas and air, said gas bein supplied from the mains 6 and conveyed y means of the several pigms 7, 7, to the air and gas mixing chambers 8, 8, connected with the outlets 5, 5; the branches 9, 9, of the gas pipes 7, 7, being arranged at an angle, as s own, for the purpose of conveying the gas in said branches 9 and chambers 8, toward the outlets 5,'5. I

10, 10, are chambers 8,8, with the regenerative work common in this class of furnaces, are provided with the common form of valve 11 to control the passage of the air, entering by flue 12, to be heated in either of the regenerators before passing into and mixing with the gas -in the corresponding chambers 8,8, which ,is burned in the melt ing furnace :1. Connected with the melting furnace 1 ijsa df'awing tank 2which is referably divided into two-sections 13} an '13, said tank being so arranged thatftiie wall 14 separating said melting'furnace and tank sections, is provided with openings 15, whose upper' sides are normally below the level a of the melted glass, so that scum or other impurities floating upon the surface of the glass will be prevented; into the drawing tank sectidiis 13 and 13'. Any suitable means, as a sliding gate 16, may be employed to shut tion between the furnace 1 andtank sections 1?, and 13, so as to prevent the molten glass in the furnace 1fr0m passing into the sections 13 and 13'.

The sections 13 and 13' are preferably rick and for the mixed from passing The melting furnace 1 is pro-* videdwith the usual charging doors or' openings 4, and

the usual fiues connectin the constructed with a-series of circular 0pmings 17 at their top, said openings bein formed by removable blocks 18, 18, shape as shown, and arranged so that when placed in position they will provide the openings and at the same time be easily removed or replaced by new blocks, when repairs are necessary. The openings 17, 17, are for the purpose of receiving the bait tool for forming the cylinde of glass 36, as indicated in Figs. 1 and 4, and said openings 17, may be closed by a cover 19, as shown in Fig. 1. Said drawing tanks may be heated by the gas burners 20 for the purpose of keeping the glass in a proper state of fluidity, should it be found that the melted glass is below the proper temperature for drawing the cylinders.

W'ithin the drawing tanks I have provided, and preferably use, a specially constructed floater. in connection with the bait,

.for drawing, the cylinders 36, and it is primarily adapted to insure a uniform flow of clean glass of homogeneous quality and term perature toward the bottom of the glass cylinder as it is being formed, and at the same time assure that no scum or other impurities will be taken up by the cylinders, and furthermore it conserves the heat Within the body of melted glass and within the tank.

Referringto Figs. 4, 5 and 6, said floater comprises an outer cylindrical section 2-1 and an inner cylindrical section 22, separated from and connected integrally with the outer section 21, by means of an annular extension 23, thereby forming an annular pocket or recess 24. as shown. Said inner cylindrical section 22 1S provided w th a top 25 having holes 31 for the purpose of permitting any air or gas toescape which might accufmulate in the chamber formed by the surface of the glass cylinder 22 and top 25. Q6 and 27 are holes, rcspectively'formed in the extension .23 and lower section of the cylinder 22. for the purpose of permitting the clean glass to flow into the annular pocket to be engaged by the bait. While in Figs. 5 and 6 l have shown the. top 25 made integral with the inner section 22, said top may be made separate, and formed as a removable cover 35' as shown in Fig. 7, said cover being provided with openings 35, and held from sliding off by means of the inner and annular lug, 28.

(-onnected with the two drawing tank sections 13 and 13' by means of suitable openings 9.9 is prodded a secondary or reheat-- ing chamber 3 which is so arranged and constructed as to permit any superfluous or cooled glass. or impurities in said tank sec tions 13 and 13, to be drawn over the separating partitions 30, into the reheating chamber 3 by means of suitable tools in mes es sorted in the openings 31, 31, in the outer wall of the chamber. The partitions 30 separating said tank sections 13 and 13 from the reheating furnace are of such a height as to be a short distance, as for example an inch, below the normal level of the melted glass in the tank sections 13 and 13'. The openings 29 may be provided with gates 32 for the purpose of closing the passageway connecting the reheating furnace with the tank sections 13 and 13, if so desired.

The reheating furnace 3, as shown, is smaller than the melting furnace, and the fines 10 and gas main 6, are extended so as to permit the one system of regeneration heaters to be used in connection with said re ing chambers 8, 8, outlets 5,

branch pipes 9', 9,'whichconnect with the mains 6 and pipes 7 by pipes 7, 7'. The, several gas pipes 9, 9, Q, 9', and 20, and

branches, supplying the gas to themelting furnace, v chamber, are provided with valves for controlling or shutting oil the gas so that either of the furnace, tanks, or chamber, or all may drawing tanks, and reheating be cutout for the purpose of making any quick repairs or controlling the operation of the furnace.

The operation of the furnace is as follows: The melting furnace 1 having been charged, the flue "valve 11 is properly set as shown in Fig. .2, the gas inlets 9, 9, on the upper side of Fig. 2 are opened and the combined. gas and air issuing from the cor-- 5 responding chambers 8 issuing from the outlets 5 is ignited and burns in said melting furnace 1 and fuses the charge in said furnace. The products of combustion pass through the opposite outlets 5, represented at the bottom side of Fig. 2, into the connected combining chambers 8. 8, from whence said products pass iu'to the flue 10 to a well known and common form of regeneration brick work, not shown, and forms no part of the present invention. The bottom of the melting furnace 1 being inclinedtoward the drawing tanks 13 and 13, the molten glass nearer the bottom of the tank flows toward and through the openings .15 into the drawing tanks, and any, scum or other impurities floating on the Sur-'- glass in the tanks 13.nnd 13 being in ;a'

highly fluid state, readily flows. through the openings 26' and 27 of the floaters (see Figs..-1- and 5; into the pockets 24, where it may be readily attached to the baits low-.

cred through the openings 17, raised in any suitable manner, not shown, and which forms no in cylindr cal form to be made into window glass, as readily understood by those skilled in the art. If it 18 the use of any of the bait tools,the covers 19 may befp aced over the openings 17 in order to keep out the dirt and retain thekheat in the tanks.

If at any time the operator sees that the gloss in the tank 13 or 13 is becoming too solid or Viscous to. be properly opera upon, the gas burners 20 may sta to increase the fluidity, which heat can be readily controlled by the valves oontrollin the gas supply. After the glasq in the tan 13 and 13 has been withdrawn for a con siderable time, and itElS found that it is cooled down to a degree where further operation, as above described, is impossible in order to make good rade of glass, and um purities are found eating on the surface of the glass, a tool or dipper may be insorted through the openings and 29, into the drawing tanks 13 or 13', and remove the cooled and deposit the same in the reheating furnace where it can be remelted and after being suiliciently heated, be withdrawn through the openings 31, or 33, and deposited through the openings 9, in the melting furnace l, to again gradually flow toward. and into the drawing tanks 13 or 13, wl'iereby a continuous operation is eilectod, without appreciable loss of heat or unused glass.

l Vhile I be"? shown and described a speoific form of floater, as indicated in Figs. 5 and 6, to be used in connection "with the furnace,.l do not herein make claim to said float/er, as this is the subject-matter of a separate application filed by me on February 9, 1914, Serial No. 819,096.

What I claim is l. A glass furnace comprising in a single structure or unit a melting furnace, a drawing tank directly connected with said melting furnace and adapted to directly receive the fluid glass from said melting funiace, and a reheating or \auxiliary furnace di rcctlyconnected. with. the drawing tank and arranged to directly receive the cooled glass from said. drawing tank. the bottoms of said melting furnace, drawing tank and reheating furnace being in one plane and inclined downwardly from the melting furnace to the reheating furnace.

'2. A glass furnace comprising in asingle structure or unit a melting furnace, a divided drawing 'tanl; having separate and direct connections with said melting furnace and adapted to receive rectly from said melting furnace, end a. re heating or auxiliary furnace having sepaconnections with the divided rate anddlrect V M drawinglank and arranged to directly reart of this invention, blown.

desired to discontinue the fluid glass dioeive the cooled glass from said drawing tank; the bottoms of said melting furnace, drawing tank and reheating furnace being in one lane and inclined downwardly from the me ting furnace to the reheating furnece.

3. A glass furnace comprising in a single structure or unit a. melting furnace, lug tank directly connected with said melting furnace and adapted to digectly receiye lass from said melting furnace ed with openings on its upper and "p rovi drawing tanlr,

side or top, floaters in said and a reheating or auxiliary furnace rectly connected with the drawing tank and arranged to directly receive the cooled glass from said drawing tank,- the bottoms-of said melting furnace, drawing tank and reheating furnace being in one plane and inclined downwardly from the melting furnace to the reheating furnace.

4. A glass furnace comprising in a single structure or unit a melting furnace,'a drawing tank directly connected with said melt; ing furnace, and a reheating furnace directly connected with said drawing tank, the bottom of the melting furnace inclined toward the drawing tank, said melting furnace and drawing tank being separated by a wall having an opening whose upper edge or side is below the normal level of the molten glass flowing from the melting tank into the drawing tank, the bottoms of said melting a draw-. e

furnace, drawing'tank and reheating fur- I nace, being in one plane and inclined downwardly from the melting furnace to the reheating furnace.

5. A. glass furnace comprising in a single structureor unit a melting furnace, a divided drawing tank directly connected with said melting furnace having openings on its upper side adapted to receive the bait, and a r heating furnace directly connected with said drawing tank, the bottom of the melting furnace inclined toward the drawing tank, said melting furnace and drawing tank being separated by a wall having an opening whose upper edge or side is below the normal level of the molten glass 'fiowing from the melting tank into the drawing tank, the bottoms of said melting furnace, drawing tank and reheating furnace being in one plane and inclined downwardly from the melting furnace to the reheating furnone 6. A gloss furnace comprising in structure or unit a melting furnace, ing tank directly connected with 'said melting furnace, and a reheating furnace di rcctly cormected with said drawing tank, the bottom of the melting furnace inclined toward the drswing tank, said melting furonce and drawing tank being separated by a wall having an opening a single a drawmaem ,or side is below the normal level of the inclined downwardly from the furnace to 10 molten glass flowing from the melting tank the reheating furna into the drawing tank, and said drawing -'In testimony whereof I affix my signature tank and ll'leheating furnace belilng separate}? in presence of two witnessw.

by a, wall aving an opening t rough w ic the cooledglass passes from the drawing JULES QUERTI NMONT' tank into the reheating furnace, the bottoms Witnesses:

of said melting furnace, drawing tank and -A. A. DE BROCY,

reheating furnace being in one 'plane and M. B. Emw. 

